How can we determine the age of a fossil? If different fossils are found in different layers of rock, could you tell which fossils are the oldest? The youngest?
The best way to not feel hopeless is to get up and do something. Don’t wait for good things to happen to you. If you go out and make some good things happen, you will fill the world with hope, you will fill yourself with hope. BARACK OBAMA
How can we determine the age of a fossil? If different fossils are found in different layers of rock, could you tell which fossils are the oldest? The youngest?
Where can fossils form? What factors affect whether an organism becomes a fossil?